理解S7--200网络通讯的基本概念-毕业论文外文文献翻译

《理解S7--200网络通讯的基本概念-毕业论文外文文献翻译》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、英文资料原文UnderstandingtheBasicsofS7-200NetworkCommunicationsSelectingtheCommunicationInterfaceforYourNetworkTheS7-200isdesignedtosolveyourcommunicationsandnetworkingneedsbysupportingnotonlythesimplestofnetworksbutalsosupportingmorecomplexnetworks.TheS7-200alsoprovi

2、destoolsthatallowyoutocommunicatewithotherdevices,suchasprintersandweighscaleswhichusetheirowncommunicationsprotocols.TheS7-200supportsmanydifferenttypesofcommunicationnetworks.TheselectionofanetworkisperformedwithintheSetPG/PCInterfacepropertydialog.Aselectedne

3、tworkisreferredtoasanInterface.Thedifferenttypesofinterfacesavailabletoaccessthesecommunicationnetworksare:1.PPIMulti-Mastercables2.CPcommunicationcards3.EthernetcommunicationcardsToselectthecommunicationinterfaceforSTEP7--Micro/WIN,youperformthefollowingsteps.S

4、eeFigure7-1.1.Double-clicktheiconintheCommunicationsSetupwindow.2.Selecttheinterfaceparameterfor12Figure7-1STEP7--Micro/WINCommunicationsInterfacePPIMulti-MasterCablesTheS7-200supportscommunicationthroughtwodifferenttypesofPPIMulti-Mastercables.Thesecabletypespe

5、rmitcommunicationthrougheitheranRS-232oraUSBinterface.AsshowninFigure7-2,selectingthePPIMulti-Mastercabletypeissimple.Youperformthefollowingsteps:1.ClickthePropertiesbuttonontheSetPG/PCInterfacepropertypage.2.ClicktheLocalConnectiontabonthePropertiespage.3.Selec

6、ttheUSBorthedesiredCOMport.123Figure7-2PPIMulti-MasterCableSelectionTipPleasenotethatonlyoneUSBcablecanbeusedatatime.TipExamplesinthismanualusetheRS-232/PPIMulti-Mastercable.TheRS-232/PPIMulti-MastercablereplacesthepreviousPC/PPIcable.AUSB/PPIMulti-Mastercableis

7、alsoavailable.RefertoAppendixEforordernumbers.UsingMasterandSlaveDevicesonaPROFIBUSNetworkTheS7-200supportsamaster-slavenetworkandcanfunctionaseitheramasteroraslaveinaPROFIBUSnetwork,whileSTEP7--Micro/WINisalwaysamaster.MastersAdevicethatisamasteronanetworkcanin

8、itiatearequesttoanotherdeviceonthenetwork.Amastercanalsorespondtorequestsfromothermastersonthenetwork.TypicalmasterdevicesincludeSTEP7--Micro/WIN,human-machineinterfa